CN112092295A - High-efficient portable injection mold - Google Patents
High-efficient portable injection mold Download PDFInfo
- Publication number
- CN112092295A CN112092295A CN202010891580.3A CN202010891580A CN112092295A CN 112092295 A CN112092295 A CN 112092295A CN 202010891580 A CN202010891580 A CN 202010891580A CN 112092295 A CN112092295 A CN 112092295A
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- die
- core
- movable
- mold
- hole
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/2673—Moulds with exchangeable mould parts, e.g. cassette moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention discloses an efficient and convenient injection mold, which comprises a fixed die, a mold core and a movable die, wherein the mold core is slidably arranged in the fixed die; the fixed die is provided with a die core hole for placing the die core and allowing the die core to slide towards the movable die in the die core, a clamping forming hole for forming a clamping part of the plastic plate and a cushion table forming hole for cushion table forming, the clamping forming hole is connected with the cushion table forming hole, and the clamping forming hole and the die core hole are vertically arranged; the movable mould is equipped with the cavity with cover half matched with side surface, the cavity with buckle shaping hole, lock joint otic placode die cavity, fill up platform shaping hole and constitute the plastics die cavity together. This high-efficient portable injection mold can realize the one shot forming of plastics plate, and the drawing of patterns is convenient, and the process is simple, and the steady quality is reliable.
Description
Technical Field
The invention belongs to the technical field of mechanical part injection molding, and particularly relates to an efficient and convenient injection mold for a plate-shaped plastic part.
Background
In actual production, there is a plastic plate with a cross section as shown in fig. 1, the plastic plate comprises a flat plate b, one end of the flat plate b is provided with a convex structure towards two sides, wherein the convex part on one side is provided with a cylindrical part c for connecting with a metal sheet, the convex part on the other side is provided with a clamping part d with a V-shaped notch, the clamping part d is arranged on a cushion table f, and the plastic plates with different types only have different clamping parts; the other end of the plastic plate is convexly provided with a buckling part a similar to an S shape towards one side where the clamping part d is positioned, and the buckling part a is arranged on one side of the plastic plate through a connecting lug plate e perpendicular to the flat plate b.
At present, no ideal mold is available for manufacturing the part, the existing high-efficiency portable injection mold has the defect of difficult demolding, demolding is difficult to carry out due to the protruding structures at the two ends of the mold, particularly, the S-shaped buckling part a at the lower end enables the whole part to be embedded into the designed mold, normal demolding is difficult to carry out, therefore, in actual production, two side protruding parts at one end where a flat plate b and a clamping part d are located often form an injection molding part, the buckling part a with the S shape adopts split type injection molding of two-piece molds, and after injection molding is finished, two pieces of the mold are disassembled so as to take out the buckling part a; then, the buckling part a and the previous injection molding part are fused in a hot bonding mode, the manufacturing mode is complex in process, more materials are needed to be transported, multiple times of injection molding are needed, the integrity of the formed plastic plate is poor, the plastic plate is easy to break at the interface of the hot bonding fusion, the shape precision of the plastic plate is unstable, even the plastic plate cannot be unified at all, and the manufacturing quality stability is not controllable.
Disclosure of Invention
The invention aims to solve the technical problems and provides an efficient portable injection mold which can realize one-step molding of plastic plates, is convenient to demold, and has simple process and stable and reliable quality.
The technical scheme of the invention is as follows:
an efficient and convenient injection mold comprises a fixed die, a mold core which is slidably arranged in the fixed die, and a movable die which can be far away from/close to the fixed die, wherein an injection mold cavity of a plastic plate is formed when the fixed die, the movable die and the mold core are attached;
the fixed die is provided with a die core hole for placing the die core and allowing the die core to slide towards the movable die in the die core, a clamping forming hole for forming a clamping part of the plastic plate and a cushion table forming hole for cushion table forming, the clamping forming hole is connected with the cushion table forming hole, and the clamping forming hole and the die core hole are vertically arranged;
the top of the mold core is provided with a slope surface inclined upwards towards one side of the movable mold, the bottom of the mold core is provided with an arc-shaped groove, and the bottom of the mold core is hinged with a movable mold; one end of the movable die, which is far away from the movable die, is connected to the bottom of the die core through a tension spring, the end surface of the other end of the movable die is an S-shaped curved surface, the movable mould between the S curved surface and the tension spring is hinged on the mould core, the position of the movable mould arranged at the bottom of the mould core is retracted towards one end far away from the movable mould, so that when the mold core slides into the mold core hole, the S-shaped curved surface, the groove, the mold core bottom surface part which is close to one end of the movable mold and is connected with the groove, and the corresponding hole walls of the reserved die core holes due to the retraction of the movable die when the fixed die, the movable die and the die core are jointed, the buckling lug plate cavity formed by the four parts can realize the integral molding of the buckling part and the connecting lug plate of the plastic plate, when the mold core slides out of the mold core hole towards the movable mold, the tension spring pulls the movable mold to the buckling lug plate cavity to crack, so that the buckling part can be freely separated from the groove;
the movable mould is equipped with the cavity with cover half matched with side surface, the cavity with buckle shaping hole, lock joint otic placode die cavity, fill up platform shaping hole and constitute the plastics die cavity together.
The clamping molding is connected with the cushion platform molding hole in the fixed die, and the cushion platform hole is an inner hole of a circular ring bulge in the fixed die; one end of the standard module, which is back to the cushion forming hole, is fixed in the fixed die through a compression spring and a locking bolt screwed in the fixed die, the outer wall of the circular ring bulge can also be axially and telescopically sleeved with a pushing circular spring, and the pushing circular spring can eject the standard module out of the fixed die when the locking bolt is screwed out; the external contour dimension of all standard modules is unchanged, and the size of the clamping forming hole is the corresponding clamping part specification series.
Furthermore, the mold core is in through thrust unit reciprocal slip in the mold core hole, thrust unit includes the baffle of a pair of interval arrangements just to setting up with the cover half, the baffle that deviates from movable mould one side is fixed to be set up, the thrust spring that is located between two baffles and perpendicular to baffle setting, the connecting rod that is located between mold core and the baffle, connecting rod one end articulates the tip that deviates from the movable mould at the mold core, the other end articulates on the baffle, the movable mould presses mold core hole back in order to form under the non-operating condition when the die cavity of moulding plastics, the thrust spring is compressed, when the movable mould was kept away from the thrust spring makes the mold core slide out of mold core hole so that the drawing of patterns again through the connecting.
Furthermore, one end of the mold core, which is far away from the movable mold, is provided with a cone frustum, the outer side of the large end of the cone frustum is coaxially provided with a protruding connecting ring, the small end of a cone spring covers the cone frustum and is fixed on the end surface of the connecting ring, the large end of the cone spring is fixed at the bottom of the cylindrical groove of the fixed mold and pushes the whole mold core out of the mold core hole in a non-working state, and the cone spring is compressed when the movable mold and the fixed mold are tightly attached, so that the buckling lug plate cavity is formed.
Furthermore, the articulated shaft of the movable mould is vertically arranged on the side wall of the opening at the end part of the mould core, which is far away from the end part of the movable mould, and the bottom surface of the movable mould is in seamless contact with the hole wall of the mould core hole matched with the bottom surface of the movable mould in a smooth plane.
The invention has the beneficial effects that: the invention utilizes the matching of the movable mould, the fixed mould and the mould core to flexibly combine the cavity of the plastic plate, the demoulding is very convenient, the modular design of the standard module is adopted, the design variety and the management workload of the mould are reduced, the one-step moulding of the plastic plate can be realized, the demoulding is convenient, the working procedure is simple, and the quality is stable and reliable.
Drawings
Fig. 1 is a schematic cross-sectional view of a plastic plate.
FIG. 2 is a schematic diagram of a structure according to the present invention.
Fig. 3 is another schematic structural diagram of the present invention.
FIG. 4 is a schematic representation of another construction of the present invention upon demolding.
Element number description: the device comprises a fixed die 1, a locking bolt 2, a compression spring 3, a standard module 4, a pushing round spring 5, a movable die 6, a circular ring bulge 7, a die core 8, a side wall 801 of a notch, a movable die 802, an injection molding cavity 9, a clamping molding hole 901, a cushion platform molding hole 902, a buckling lug plate cavity 903, a tension spring 10, a connecting rod 11, a baffle plate 12, a thrust spring 13, a conical spring 14, a connecting ring 15 and a hydraulic rod 16.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in fig. 2 to 4, an efficient and convenient injection mold comprises a fixed mold 1, a mold core 8 slidably mounted in the fixed mold 1, and a movable mold 6 capable of being far away from/close to the fixed mold 1, wherein an injection mold cavity 9 of a plastic plate is formed when the fixed mold 1, the movable mold 6 and the mold core 8 are fitted.
The fixed die 1 is provided with a die core 8 hole for placing the die core 8 and allowing the die core 8 to slide towards the movable die 6, a clamping forming hole 901 for forming a clamping part of a plastic plate and a cushion table forming hole 902 for cushion table forming, the clamping forming hole 901 is connected with the cushion table forming hole 902, and the clamping forming hole 901 and the die core 8 hole are arranged up and down.
The top of the mold core 8 is provided with a slope surface which is inclined upwards towards one side of the movable mold 6, and preferably, the slope angle of the slope surface which is inclined upwards towards one side of the movable mold is 38-51 degrees; meanwhile, the bottom of the mold core 8 is provided with a circular arc-shaped groove, and the bottom of the mold core 8 is hinged with a movable mold 802; one end of the movable die 802 departing from the movable die 6 is connected to the bottom of the die core 8 through a tension spring 10, the end surface of the other end of the movable mould is an S-shaped curved surface, the movable mould 802 between the S-shaped curved surface and the tension spring 10 is hinged on the mould core 8, the position of the movable mould 802 arranged at the bottom of the mould core 8 is retracted towards one end far away from the movable mould 6, when the mold core 8 slides into the mold core 8 hole, the S-shaped surface, the groove, the mold core bottom part near one end of the movable mold 6 and connected with the groove, the corresponding hole wall of the mold core 8 hole reserved by the retraction of the movable mold 802 when the fixed mold 1, the movable mold 6 and the mold core 8 are jointed, the buckling lug plate cavity 903 surrounded by the four parts can realize the integral molding of the buckling part and the connecting lug plate of the plastic plate, when the mold core 8 slides out of the hole of the mold core 8 towards the movable mold 6, the tension spring 10 pulls the movable mold 802 to the buckling lug plate cavity 903 to crack, so that the buckling part can be freely separated from the groove.
The movable mould 6 is equipped with the cavity with cover half 1 matched with one side surface, the cavity with buckle shaping hole, lock joint otic placode die cavity 903, fill up platform shaping hole 902 constitute the die cavity 9 of moulding plastics of plastic plate together.
When the mould core is used, before injection molding, the mould core 8 slides out of the hole of the mould core 8, and under the tension of the tension spring 10, the movable mould 802 rotates clockwise by a certain angle towards one side of the tension spring 10 to present a free state when the mould core does not work; when the mould is in work, the movable mould 6 is pressed towards the fixed mould 1, the mould core 8 is pressed back to the hole of the mould core 8, the fixed mould 1, the movable mould 6 and the end surface of the mould core 8 are connected, and in the process that the mould core 8 slides into the hole of the mould core 8, the movable mould 802 is gradually contacted with the corresponding inner wall of the mould core 8 and finally is in a horizontal state, the buckling lug plate mould cavity 903 is gradually formed, and the injection mould cavity 9 is finally formed. Inject liquid plastics into in the die cavity 9 of moulding plastics, treat the cooling shaping back, movable mould 6 begins to separate and along with the movable mould 6 separation while die core 8 slides towards 8 hole outsides of die core naturally, and outside ejecting cover half 1 of the good plastics plate of shaping, and because the effect of extension spring 10, movable mould 802 will resume natural state, make fastening lug board die cavity 903 separately, thereby make the inside smooth separation of catching part from cover half 1, so that the product is taken out in the drawing of patterns, in order to make the drawing of patterns more convenient rapidly, die core 8 should design as far as possible for littleer towards the one end terminal surface of movable mould 6, make it far less than the interval between catching part and the joint portion. In order to make the demoulding more rapid, a hydraulic rod 16 can be arranged at a corresponding position of the fixed die 1 to assist the die core 8 in ejecting and demoulding the formed plastic plate. Therefore, the efficient and convenient injection mold provided by the invention can realize one-step molding of the plastic plate, and is convenient to demold, simple in process and stable and reliable in quality.
Further, the fixed die comprises a standard module 4 which is detachably installed in the fixed die 1, wherein the standard module 4 is inserted from one side of the fixed die 1, which is far away from the movable die 6, and the end surface of the insertion end of the standard module is provided with the clamping molding hole 901, the clamping molding is connected with the cushion table molding hole 902 in the fixed die 1, and the cushion table hole is an inner hole of the circular ring bulge 7 in the fixed die 1; one end of the standard module 4, which is back to the cushion forming hole 902, is fixed in the fixed die 1 through a compression spring 3 and a locking bolt 2 screwed in the fixed die 1, the outer wall of the circular ring bulge 7 can also be axially and telescopically sleeved with a pushing circular spring 5, and the pushing circular spring 5 can eject the standard module 4 out of the fixed die 1 when the locking bolt 2 is screwed out; the external contour dimension of all the standard modules 4 is unchanged, and the size of the clamping forming hole 901 is the corresponding clamping part specification series. The structure enables the design of the mold to be more scientific, and the modular design enables plastic plates of different specifications to be multipurpose by replacing the corresponding standard module 4, so that the design and management of the mold are reduced, and the cost is greatly saved.
Further, the mold core 8 is in through thrust unit 8 downthehole reciprocal slip of mold core, and thrust unit includes the baffle 12 of a pair of interval arrangement that just right sets up with the cover half 1, and the baffle 12 that deviates from movable mould 6 one side is fixed to be set up, and the thrust spring 13 that is located between two baffles 12 and perpendicular to baffle 12 sets up, is located the connecting rod 11 between mold core 8 and baffle 12, and connecting rod 11 one end articulates at the tip that the mold core 8 deviates from movable mould 6, and the other end articulates on baffle 12, when movable mould 6 pressed the mold core 8 under the non-operating condition back to the mold core 8 hole in order to form mould plastics die cavity 9, thrust spring 13 is compressed, when movable mould 6 keeps away from the time thrust spring 13 makes the mold core 8 roll-off 8 hole again through connecting rod 11 so that. The driving mode of the mold core 8 can well realize the motion characteristic of the mold core 8 of the invention by utilizing the elastic deformation of the thrust spring 13, and the operation of the movable mold 6 and the fixed mold 1 is matched.
Further, one end of the mold core 8, which is away from the movable mold 6, is provided with a truncated cone, the outer side of the large end of the truncated cone is coaxially provided with a protruding connecting ring 15, the small end of the conical spring 14 is covered on the truncated cone and fixed on the end surface of the connecting ring 15, the large end of the conical spring 14 is fixed at the bottom of the cylindrical groove of the fixed mold 1 and pushes the whole mold core 8 out of the mold core 8 hole in a non-working state, the conical spring 14 is compressed when the movable mold 6 is attached to the fixed mold 1 so as to form the buckling lug plate cavity 903, and the conical spring 14 can be a spring with a larger strength coefficient, so that the spring can support the mold core 8 to be suspended outside the mold core 8 hole after the mold core 8 is pushed out of the mold core 8 hole. The driving mode of the mold core 8 is simple and reliable, the structure is compact, the installation is convenient, the movement characteristic of the mold core 8 can be well realized by utilizing the elastic deformation of the conical spring 14, and the work of the movable mold 6 and the fixed mold 1 is matched.
Further, the hinge shaft of the movable mold 802 is vertically disposed on the side wall 801 of the opening at the end of the mold core 8 away from the movable mold 6, and the bottom surface of the movable mold 802 is in seamless contact with the hole wall of the mold core 8 hole in contact fit therewith, so that the movable mold 802 is better fitted with the hole wall of the mold core 8 to form the snap-fit ear plate cavity 903.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (3)
1. The utility model provides a high-efficient portable injection mold which characterized in that: the injection molding device comprises a fixed die, a die core which can be slidably arranged in the fixed die, and a movable die which can be far away from/close to the fixed die, wherein an injection molding cavity of a plastic plate is formed when the fixed die, the movable die and the die core are attached;
the fixed die is provided with a die core hole for placing the die core and allowing the die core to slide towards the movable die in the fixed die, and is also provided with a clamping forming hole for forming a clamping part of a plastic plate and a cushion table forming hole for forming a cushion table, the clamping forming hole is connected with the cushion table forming hole, and the clamping forming hole and the die core hole are vertically arranged;
the top of the mold core is provided with a slope surface inclined upwards towards one side of the movable mold, the bottom of the mold core is provided with an arc-shaped groove, and the bottom of the mold core is hinged with a movable mold; one end of the movable die, which is far away from the movable die, is connected to the bottom of the die core through a tension spring, the end surface of the other end of the movable die is an S-shaped curved surface, the movable mould between the S curved surface and the tension spring is hinged on the mould core, the position of the movable mould arranged at the bottom of the mould core is retracted towards one end far away from the movable mould, so that when the mold core slides into the mold core hole, the S-shaped curved surface, the groove, the mold core bottom surface part which is close to one end of the movable mold and is connected with the groove, and the corresponding hole walls of the reserved die core holes due to the retraction of the movable die when the fixed die, the movable die and the die core are jointed, the buckling lug plate cavity formed by the four parts can realize the integral molding of the buckling part and the connecting lug plate of the plastic plate, when the mold core slides out of the mold core hole towards the movable mold, the tension spring pulls the movable mold to the buckling lug plate cavity to crack, so that the buckling part can be freely separated from the groove;
the movable mould is equipped with the cavity with cover half matched with side surface, the cavity with buckle shaping hole, lock joint otic placode die cavity, fill up platform shaping hole and constitute the plastics die cavity together.
2. The efficient portable injection mold of claim 1, wherein: the articulated shaft of the movable mould is vertically arranged on the side wall of the opening of the end part of the mould core, which is far away from one end of the movable mould, and the bottom surface of the movable mould is in smooth plane seamless contact with the hole wall of the mould core hole which is in contact fit with the bottom surface of the movable mould.
3. The efficient portable injection mold of claim 1, wherein: the slope angle of the slope surface of the top of the mold core inclined upwards towards one side of the movable mold is 38-51 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891580.3A CN112092295B (en) | 2020-08-31 | 2020-08-31 | High-efficient portable injection mold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010891580.3A CN112092295B (en) | 2020-08-31 | 2020-08-31 | High-efficient portable injection mold |
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| Publication Number | Publication Date |
|---|---|
| CN112092295A true CN112092295A (en) | 2020-12-18 |
| CN112092295B CN112092295B (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010891580.3A Active CN112092295B (en) | 2020-08-31 | 2020-08-31 | High-efficient portable injection mold |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121269A (en) * | 2013-02-01 | 2013-05-29 | 昆山腾宇鑫金属制品有限公司 | Mould with sliding block with barb separating function |
| CN105904678A (en) * | 2016-06-30 | 2016-08-31 | 浙江台州美多模具有限公司 | Rotational core pulling mechanism for injection mould |
| CN106696202A (en) * | 2016-12-26 | 2017-05-24 | 昌辉精密模具（黄山）有限公司 | Separating structure for bending piece injection mold with multiple inversed buckles |
| CN206383443U (en) * | 2016-12-23 | 2017-08-08 | 广东长盈精密技术有限公司 | Back-off knock-out gear and mould |
| CN208914520U (en) * | 2018-09-04 | 2019-05-31 | 天津洲海科技发展有限公司 | A kind of mold back-off core-pulling device |
-
2020
- 2020-08-31 CN CN202010891580.3A patent/CN112092295B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103121269A (en) * | 2013-02-01 | 2013-05-29 | 昆山腾宇鑫金属制品有限公司 | Mould with sliding block with barb separating function |
| CN105904678A (en) * | 2016-06-30 | 2016-08-31 | 浙江台州美多模具有限公司 | Rotational core pulling mechanism for injection mould |
| CN206383443U (en) * | 2016-12-23 | 2017-08-08 | 广东长盈精密技术有限公司 | Back-off knock-out gear and mould |
| CN106696202A (en) * | 2016-12-26 | 2017-05-24 | 昌辉精密模具（黄山）有限公司 | Separating structure for bending piece injection mold with multiple inversed buckles |
| CN208914520U (en) * | 2018-09-04 | 2019-05-31 | 天津洲海科技发展有限公司 | A kind of mold back-off core-pulling device |
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| Publication number | Publication date |
|---|---|
| CN112092295B (en) | 2022-01-14 |
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Effective date of registration: 20211230 Address after: No. 15, Dongyang 3rd road, South China hardware industry base, Danzao Town, Nanhai District, Foshan City, Guangdong Province 528200 Applicant after: Foshan Yingli Auto Parts Co.,Ltd. Address before: 401120 No.14, Fuyun street, Yubei District, Chongqing Applicant before: Chongqing Zhixiang Technology Co.,Ltd. |
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